A preliminary breath test (PBT) is a small handheld breath testing device used by police officers to determine whether or not to arrest a person for DUI. Typically, administration of the PBT follows field sobriety tests. Based upon a motorist’s performance of field sobriety tests and the results of the PBT, a police officer makes a determination to arrest or release the driver. PBTs are also used to convict minors of “possessing” alcohol.

The following excerpt from the Chicago Sun-Times sounds like something from Bizaro World. DUI cases are being dismissed by prosecutors who reviewed in-car videos, finding that two Chicago police officers were fabricating drunk driving arrest records. And the prosecutors aren’t simply dismissing drunk driving cases. One officer is actually facing criminal charges. This is unreal. I feel strange and light headed. I’ve fallen down the rabbit’s hole… Quite frankly, this could never happen in Michigan.